<template>
    <!-- 头部 -->
    <header class="header">
        <!-- 头部的第一行 -->
        <div class="top">
            <div class="container">
                <div class="loginList">
                    <p>优选购欢迎您！</p>
                    <p v-if="!userName">
                        <span>请</span>
                        <router-link to="/login">登录</router-link>
                        <router-link to="/register" class="register">免费注册</router-link>
                    </p>
                    <p v-else>
                        <a>{{ userName }}</a>
                        <a class="register" @click="logout">退出登录</a>
                    </p>
                </div>
                <div class="typeList">
                    <router-link to="/center/myorder">我的订单</router-link>
                    <router-link to="/shopcart">我的购物车</router-link>
                    <a href="javascript:">我的优选购</a>
                    <a href="javascript:">优选购会员</a>
                    <a href="javascript:">企业采购</a>
                    <a href="javascript:">关注优选购</a>
                    <a href="javascript:">合作招商</a>
                    <a href="javascript:">商家后台</a>
                </div>
            </div>
        </div>
        <!--头部第二行 搜索区域-->
        <div class="bottom">
            <h1 class="logoArea">
                <router-link class="logo" title="优选购" to="/home">
                    <img src="@/assets/images/logo.png" alt="" />
                </router-link>
            </h1>
            <div class="searchArea">
                <form @submit.prevent class="searchForm">
                    <input
                        type="text"
                        id="autocomplete"
                        class="input-error input-xxlarge"
                        v-model="keyword"
                        @keyup.enter="goSearch"
                    />
                    <button class="sui-btn btn-xlarge btn-danger" type="button" @click="goSearch">搜索</button>
                </form>
            </div>
        </div>
    </header>
</template>

<script setup lang="ts">
import {ref, onBeforeUnmount, computed, onMounted} from 'vue'
import {useRoute, useRouter, RouteLocationNamedRaw} from 'vue-router'
import bus from '@/libs/bus'
import {useUserStore} from '@/store'

const router = useRouter()
const route = useRoute()
const store = useUserStore()

//收集表单元素文本内容
const keyword = ref('')
const userName = computed(() => store.userInfo.name)

//搜索按钮的事件处理函数，用于跳转到search路由组件当中
const goSearch = () => {
    if (route.query) {
        let location: RouteLocationNamedRaw = {
            name: 'search',
            params: {keyword: keyword.value || undefined}
        }
        location.query = route.query
        router.push(location)
    }
}

//清除搜索关键字
const clearSearch = () => {
    keyword.value = ''
}

onMounted(() => {
    store.getUserInfo()
})

//绑定事件总线，启用监听
bus.on('clearSearch', clearSearch)
//移除监听
onBeforeUnmount(() => {
    bus.off('clearSearch', clearSearch)
})

//退出登录
const logout = async () => {
    try {
        await store.userLogout()
        router.push('/home')
    } catch (e) {
        console.log(e)
    }
}
</script>

<style scoped lang="less">
.header {
    & > .top {
        background-color: #eaeaea;
        height: 30px;
        line-height: 30px;

        .container {
            width: 1200px;
            margin: 0 auto;
            overflow: hidden;

            .loginList {
                float: left;

                p {
                    float: left;
                    margin-right: 10px;

                    .register {
                        border-left: 1px solid #b3aeae;
                        padding: 0 5px;
                        margin-left: 5px;
                    }
                }
            }

            .typeList {
                float: right;

                a {
                    padding: 0 10px;

                    & + a {
                        border-left: 1px solid #b3aeae;
                    }
                }
            }
        }
    }

    & > .bottom {
        width: 1200px;
        margin: 0 auto;
        overflow: hidden;

        .logoArea {
            float: left;

            .logo {
                img {
                    width: 175px;
                    margin: 25px 45px;
                }
            }
        }

        .searchArea {
            float: right;
            margin-top: 35px;

            .searchForm {
                overflow: hidden;

                input {
                    box-sizing: border-box;
                    width: 490px;
                    height: 32px;
                    padding: 0 4px;
                    border: 2px solid #ea4a36;
                    float: left;

                    &:focus {
                        outline: none;
                    }
                }

                button {
                    height: 32px;
                    width: 68px;
                    background-color: #ea4a36;
                    border: none;
                    color: #fff;
                    float: left;
                    cursor: pointer;

                    &:focus {
                        outline: none;
                    }
                }
            }
        }
    }
}
</style>
